Folding knife



FIG. 1 is a top, right perspective view of a folding knife showing the new design.

FIG. 2 is a front view of the folding knife of FIG. 1 .

FIG. 3 is a rear view of the folding knife of FIG. 1 .

FIG. 4 is a right view of the folding knife of FIG. 1 .

FIG. 5 is a left view of the folding knife of FIG. 1 .

FIG. 6 is a top view of the folding knife of FIG. 1 ; and,

FIG. 7 is a bottom view of the folding knife of FIG. 1 .

The broken lines depict portions of the folding knife in which the design is embodied that are not considered part of the claimed design. 

CLAIM We claim the ornamental design for a folding knife, as shown and described. 